The Jackson, Mississippi, mom had left her 6-year-old son, Kingston Frazier, in the back seat of her running Camry early yesterday morning to pop inside a Kroger store.
The vehicle was found along a dead-end road in Gluckstadt, located 15 miles outside of Jackson, Mississippi.
Authorities have identified McBride as the shooter.
Kingston Frazier's mother, Ebony Archie, had left him in her auto with the engine running as she went inside a local grocery store, The New York Daily News reported.
UPDATE: 05/18/2017 11:31am One person of interest is in custody in connection with the kidnapping of Kingston Frazier and authorities are looking for a second person who is wanted for questioning, according to the Hinds County Sheriff's Department.
Three suspects are in custody.
Dwan Wakefield, Byron McBride and D'Allen Washington are now being held without bond in the Madison County Detention Center.
Within a short time, authorities say two subjects in a Honda Civic pulled up to Archie's auto.
The men from MS were arrested hours after the child's body was found and will be charged with capital murder, which makes them eligible for the death penalty.
An Amber Alert was issued for the missing boy and was canceled several hours later after police had said he was found dead in Madison County.
Today was the day of his promotion ceremony at North Jackson Elementary.
It's unclear, though, exactly who took the vehicle with Frazier. Tragically, it was announced later that morning the boy was discovered dead with at least one gunshot wound to the back of his head.
Taken into custody are two men, Dwan Wakefield and DeAllen Washington, both aged 18. After leaving the club, she picked up Kingston from a different location before going to Kroger. The little boy was shot multiple times, officials said. "I told y'all that shit wasn't right, I told y'all", she said between sobs, the Clarion-Ledger reported. His mother, Ebony Archie, left him asleep in her Toyota Camry while she briefly went inside of the store. The Mississippi Department of Public Safety sent the Amber Alert at 4:30 a.m.
David Archie said, "You can't continue to do what has taken place and that's taking the lives of 6-yearolds, 20-year-olds". He also said the shots were not self-inflicted to dispel rumors he was playing with a gun.
Therese Apel from The Clarion Ledger posted a Facebook Live video from the scene, where a number of apparent family members spoke to the media.
Guest says the three men will make their first appearance in court Monday.